// pages/home/index/index.js
Page({

  /**
   * 页面的初始数据
   */
  data: {
    winWidth: 0,
    winHeight: 0,
    currentTab: 0,
    swiperlist: [{
			id: 0,
			url: '/img/banner.jpg',
			type: 1
		}, {
			id: 1,
			url: '/img/banner1.jpg',
			type: 2

		}, {
			id: 2,
			url: '/img/banner3.jpg',
			type: 3
    }],
    

    isFixed: false,
    fixedTop: 0,
    topPadding: 0
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.initUi();
    this.setData({
      currentTab: 0
    })

    let query = wx.createSelectorQuery();
    query.select(".tabBar").boundingClientRect((res) => {
        this.setData({
            fixedTop: res.top          })
    }).exec()
  },

   onPageScroll: function (e) {
      if (e.scrollTop > this.data.fixedTop) {
          this.setData({ isFixed: true })
      } else {
          this.setData({ isFixed: false })
      }
  },
  initUi: function () {
    var that = this;
    //  高度自适应
    wx.getSystemInfo({
      success(res) {
        var clientHeight = res.windowHeight,
          clientWidth = res.windowWidth,
          rpxR = 750 / clientWidth;
        var calc = clientHeight * rpxR - 330;
        that.setData({
          winHeight: calc
        });
      }
    })
  },

  //  tab切换逻辑
  swichNavs: function( e ) {
    console.log(e)
    var that = this;
    if( this.data.currentTab === e.target.dataset.current ) {
        return false;
    } else {
        that.setData( {
            currentTab: e.target.dataset.current
        })
    }
},
bindChange: function( e ) {
  var that = this;
  that.setData( { currentTab: e.detail.current });

},
navigationClick:function(){
  wx.navigateTo({
    url: '/pages/home/details/details'
  })
},
swipclick:function(){
  wx.navigateTo({
    url: '/pages/user/tologin/tologin'
  })

},

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})